TY  - BOOK
AU  - Hirschi,L.Edwin
TI  - Building mathematics concepts in grades kindergarten through eight
SN  - 0700221964 :
U1  - 372.7 
PY  - 1970///
CY  - Scranton, Pa.
PB  - International Textbook
KW  - Probabilities
KW  - Study and teaching (Elementary)
KW  - Mathematics
ER  -